Centrifugal concrete-pole machine.



W. H. LIENESCH. 'CENTRIFUGAL CONCRETE POLE MACHINE.

2 SHEETS-SHEET l..

W.V H. UENESCH. mmazfuG/u CONCRETE POLE MACHINE.

APPLICATHJN FILED 1ML-28,1916. 1 a Pat-ente@ Oct. 3,1916.

2 SHEETS-SHEET 2 WALTER ii. LiEivEscir, er ansias?, riaiiinois, assisteren, BY MEsnE ASSIGNMENTS, To UNrvEnsnL concessa Paonncrs cotisant', A conronarron 0E DELAWARE.

CENTPEUGAL C QNCRETE-POLE MACHINF incassa.

T0 all whom t may concern: l

Be it known that l, limita H. Liiixiisci-i, a citizen olil the United States and a resident of Joliet, in the county of `Will and State of Illinois, have invented certain new and useful Improvements in Centrifugal Con crete-Pole niachines, ot which the following v is a specification.

My invention relates to centrifugal coninsertion of the mold into the carrier mechanism and special means are necessary `tor supporting and guiding the mold into the carrier mech anisni. 0n the carriers locking means are provided for locking and centralizing the mold with refereuce'ito the, carrier.

securely together,

One of the important objects of my invention is to provide improved centralizing means for centralizingl antl locking the mold in a rotatable carrier. Another object is to eliminate special supporting means for guiding the mold into the carrier and a feature ot' the invention is to adapt the centralizing means foi; acting also as supporting and guidingmeans for guiding the mold 'into the carrier.

Another importantob'ect is to eliminate lockingr mechanism ontlie mold sections and the necessity .tor locking and seciiring the mold sections together Abefore entrance of the mold into the carrier and` another fea ture ot the invention to'adapt the centralizing means Vfor securely locking and holding the mold sections together. ln

other words, the invention provides coni- -mon means ior guiding the mold into the carrier, tot' centrali/:ing the mold in the carrier. and tor locking the mold sections such common means greatly simplifying the construction oi the machine by the elimination ol a great deal of special mechanisins necessary in prior machines.

Specification of Letters Patent.

e airy to secnrerlhe invention also concerns improved adjustable supporting mechanism for the .carrier for enabling a. long carrier to be accurately and readily rotated at high-speedv to get the desired centrifugal action for ctiiciently forming the pole in minimum time. ,i

The. various features of my inventionare' rat-enten oct. 3,1916-, Application led January 28, 1916. Serial No. 74,748. I

embodied in the machine shown on the a'c-v companying drawings, in which drawings- Figure l is anl end elevational view 4of the machine, Fig. 2 vis a plan view of the carrier and its supporting' and driving mechanism, Fig'. 3 is an enlarged sectionalv view on plane 3-3, Fig. 1, and Fig. vlfis an enlarged sectional view .on plane 1f-4,

Fig. 1. v v In my improved machine the carrier 5 is" in the form vof a pipe of a. length suitable' for the poles to be formed. At intervals rings (3 are applied to the pipe tofstrengthen it and such rings are preferably of T section to act as rails. With each rail band is as'- soeiated a supporting frame structure F suitably built up of structural iron. yEach trame comprises a base structure 7 from whose ends side beams S and 9 extend up-A wardly toward 'each other so that the resulting frames are of triangular Ashape,

tie plates 1 0, 1l and l2 securely locking the base and side parts 'of each frame together. 0n each base structure 7 are mounted bear- -aov ing bases '.13 and 14 for supporting journalf' boxes 15 and 1G in which track wheels 17 and i8 are journaled to receive the respective track rings onthe carrier. To hold the carrier on the various supporting-track wheelsI an upper track wheel 19 is provided on each frame F and journaled in a box 20' supported' between the upper and lower cross beams 2l and 2Q. ln'order to adjust the various track wheels and to compensate' for wear the journal boxes vl5 and 1G are adjustable vertically and laterally., Vertiieal adjustment is obtained by means of. wedge blocks Q3 and '24 controlled by screws and 2G extending through the upright walls 27 and QS, the journal boxes being mounted on the wedges. Lateral 'adjustment is obtained by laterally shifting the journal boxes by means of screws 29 and 30 also engaging in the upright walls 27 land 2S. The upper track wheels are adjustable downwardly by means of set screws 31 act .ing against the tops of the journal boxes 20.

In p actice me various supporting frames F will be mounted on a foundation and to give greater stability to the frames they could all be connected together by beams 32. as shown in Fig. l. Any suitable means may be provided tor rotating the carrier, an electric motor such as M being particularly adaptable for `such driving, and in the connection of the motor-)with the carrier the flexible coupling or joint 33vis preferably included. Describing now the centering means for centering a mold A, zones of upper and lower centering devices c, c are provided. The devices c are below the horizontal diametral planeo the carrier and are in the form of blocks 34 provided with end Walls 35 and 36 for supporting a shaft 3? on which a roller 38 is mounted, the roller axes being at right angles with the carrier axis. There may be any number o't' such lower centering members c, and as will be explained later, the rollers oitv the various devices yform a` track or run way along which the mold is guided into the carrier.

The various upper clamping members of each zone are above the horizontal axial planeot the carrier and the construction and arrangement of each member is clearly shown in Fig. Each clamping member c has a clamping plunger 39 carried on the lower end of a radially-extending screw Ll() whose outer end is threadedly engaged by a bevel gear 4-1. To accommodate each screw a hole 42 is provided therefor in the carrier pipe 5, the screw extending through this hole and through the passageway 43 in a plate H secured to the pipe, such plate 'forming an abutment for the gear 4l. Below each hole 42 is secured another plate 45 having an opening 46 in registerwith the openings 42 and 43, the flange 47 surrounding the opening 4G offering'sufl'cient guide-surface 'for the plunger or clamping head 89 which is reciprocable in said opening. There may be any numberr of adjustable clamping members c, three being shown in the drawing` and I have shown means for simultaneously actuating all the members vof a zone. As shown, shafts 48 provided at their ends with bevel gears 49 and 50 con nect the various gears 41 together. extensions 51 on the plates #it forming-bearings for the shafts. The ends of the screws 40 are polygonal for receiving a wrench or other turning tool. and in the arrangement de* scribed turning of any one ol the screws will be transmitted to the other screws through the gearing trains` and the clamp ing heads or plungers 39 will be' radially shifted sin'iultancously to be brought into clamping engagement with the moldor to be withdrawn therefrom.

The mold may be constructed ot metal or other suitable material and may be ci any number of sections. In the drawing itis shown composed of two semicylindrical sections and 53 whose respective edges are rallbeted or otherwise shaped to form a, suitablel joint 7' when the halves are brought together. llVhen a pole is to be formed one oit' the mold halves is supported on sets of suitable rollers 5s forming a supporting track way leading to the end of the carrier and after end closures 55 are applied to the mold halves the cementitious material 5G is poured. into the mold half and the reinforcing cage 57 of suitable. construction sunk into place. The upper mold half is then ap# plied and the mold then rolled along the track rollers 54 into the carrier which was previously turned to bring the stationary clamping members cinto position below the horizontal axis of the carrier, the rollers 38 oi these clamping members receiving the lower sections of the mold and guiding the mold from clamping zone to clamping zone until the mold is entirely within the carrier.

` rlhe adjustable clamping members c are then operated and their clamping heads 39 brought against the upper mold halfA and the mold sections are then "securely locked and clamped together and the mold is accurately centered in the carrier. After such clamping and centering the motor M is started and the carrier rotated at suflicient speed to enable centrifugal force to compactly and with considerable 'pressure force the cementitious material against the mold sides to form the tubular pole. After the cement has become 'suiiiciently compact the clamping members c are released and the mold shifted out of the carrier from the rollers 3S to the track rollers 54. By removing the end closures 55 the vater squeezed out of the cement during rotation of the mold can be readily drawn od and then the mold sections separated and the inished pole removed for final drying and hardening.

By using my improved construction and arrangement the mold sections need not be secured together before insertion of the mold into the carrier, the clamping members besides serving to center the mold.r serving also to lock the mold sections rigidly and? curely together, special clamping lugs or other mechanisms being thus unnecessary and a great deal of labor saved which would otherwise be necessary before insertion of the 'mold into the carrier and after withdrawal of the mold from the carrier. Furthermore, as the centering members r," are provided with rollers, special means for supporting and guiding the mold into the carrier are unnecessary, these rollers serving to support and accurately guide the mold into proper position in the carrier. rlfhus besides serving to center the mold in the carrier the clamping members c and c serve as guiding means tor the mold into the carrier. and as locking means for locking the mold sections together. A '1 In the machine shown poles of different and varying dimensions can be formed. f The outside diameter of all the molds is the same but the variation and difference of diameters is taken care of by the interior of the m'old. For smaller diameter poles the internal diameter of the mold will becorrespondingly smaller. Likewise for di'erent shapes of poles the interior of the mold will be made to correspond. QFor example, if a conical .pole is desired the interior of the mold will be correspondingly conical.

As already stated the mold can be of any L:

suitable material. In order to form better engaging surfaces for the rollers 38 andfor the clamping heads 39 the mold sections areA provided with longitudinally extending flat areas 58 and where'the mold is constructed of softer material such as Wood metall plates 59 may be applied to such flat areas to be interposed between the mold and the rollers and clamping heads.

I thus produce a centrifugalconcrete pole forming machine which isof simple, durable and practical construction and whose operation is highly efficient, a great amountof special mechanism necessary in prior machines being eliminated together with the expense necessary for the operation of such special mechanism. I do not of course desire to be limited to the exact details of. construction and" arrangement shown and devof rollers for coperating therewith to clamp and center a. mold i the carrier.

2. In a centrifugal concr lte p'ole machine, the combination of a continuous cylindrical carrier, means supporting said carrier for rotation about its longitudinal axis, setsof rollers arranged at intervals in said carrier along which a mold may be conveyed into the carrier, a set `of clamping members lassociated with each set. of rollers, a radially adjustable clampinghead for each clamping member for engaging with the mold, and

means for simultaneously effecting adjustment lofsaid heads. v

3. In a centrifugal concrete pole machine,

the combination of a continuous cylindrical carrier,l means supportingsaid carrier for rotation about its axis, sets of rollers arranged at intervalsl on the inside of said carrier, a sectional mold having' i` ts.lower part supported on said rollers, and aset of radially adjustable clamping members associated witheach set of rollers forlengaging with the upper part of said mold to rigidly clamp the mold parts together and to center the mold.

4. In a centrifugal concrete pole machine,

the combination of a continuous cylindrical carrier, means -supporting said carrier for rotation about itsaxis, sets of rollers'jour naled on the inside of.- said carrier on which rollers a moldv may be conveyed into the car'- rier and supported, a set of clamping plungers associated with each set of rollers and adapted to be radially shifted into clamping engagement with a mold lresting on said rollers whereby to center the mold in the carrier.

`5. I-n a centrifugal concrete pole machine, the combination of a row of transversely eX- tending supporting frames, a pair of track wheels on each frame, a carrier' having track bands .thereon for engaging the respective.

track wheels whereby said carrier is mounted for rotationfaboutv its axis, .and a track wheel at the top of each frame for engaging with the respective track band on the carrier.

6. In a centrifugal concrete pole machine, the combl'natlon of a long contlnuous cylindrical carrier, means supportlng sald carrier for rotation about its axis, 'and means within the carrier for clamping a mold centrally'therein to be rotated therewith.

7. In a centrifugal concrete pole machine, the combination of a continuous cylindrical, carrier, means supporting said-carrier for rotation about its axis, rollers WithinA s` id vcarrier forrsupporting a mold and along which` the mold may be conveyed into the carlier, and adjustable clamping members onsaid carrier for locking said 'mold on the rollers centrallywithin the c rier.

8. In a centrifugal concrete pol' machine, l

the combination ofa carrier rota/table about its longitudinal axis, supports in the carrier for a mold, radially adjustable plungers op-v posite said supports, and gearmg lntercon-l necting said plungersfor effecting simultaneous operation thereof to clamp the'mold against the supports.

lI-n witness whereof -I hereunto set my v hand this 24th day of Janna-ry, A. D. 1916.

WALTER H'. LInNE'soH. 

